diff options
| author | Will Deacon <will@kernel.org> | 2020-09-15 23:30:17 +0100 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2020-09-29 16:08:15 +0100 |
| commit | d4647f0a2ad711101067cba69c34716758aa1e48 (patch) | |
| tree | f65d9fa7399f261dbf6d9a11019e2594e4d80047 /arch/arm64/include/asm/cpufeature.h | |
| parent | 455697adefdb8604cd10413da37c60014aecbbb7 (diff) | |
arm64: Rewrite Spectre-v2 mitigation code
The Spectre-v2 mitigation code is pretty unwieldy and hard to maintain.
This is largely due to it being written hastily, without much clue as to
how things would pan out, and also because it ends up mixing policy and
state in such a way that it is very difficult to figure out what's going
on.
Rewrite the Spectre-v2 mitigation so that it clearly separates state from
policy and follows a more structured approach to handling the mitigation.
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'arch/arm64/include/asm/cpufeature.h')
| -rw-r--r-- | arch/arm64/include/asm/cpufeature.h | 6 |
1 files changed, 0 insertions, 6 deletions
diff --git a/arch/arm64/include/asm/cpufeature.h b/arch/arm64/include/asm/cpufeature.h index 851d144527ed..3b48aa121cee 100644 --- a/arch/arm64/include/asm/cpufeature.h +++ b/arch/arm64/include/asm/cpufeature.h @@ -698,12 +698,6 @@ static inline bool system_supports_tlb_range(void) cpus_have_const_cap(ARM64_HAS_TLB_RANGE); } -#define ARM64_BP_HARDEN_UNKNOWN -1 -#define ARM64_BP_HARDEN_WA_NEEDED 0 -#define ARM64_BP_HARDEN_NOT_REQUIRED 1 - -int get_spectre_v2_workaround_state(void); - #define ARM64_SSBD_UNKNOWN -1 #define ARM64_SSBD_FORCE_DISABLE 0 #define ARM64_SSBD_KERNEL 1 |